Time Series of Gold Particle Counts in a Well-Defined Colloidal Solution

A sample of 370 counts of gold particles in a well-defined colloidal solution at equidistant points in time. The data were originally published in Westgren (1916) and later used in Jung and Tremayne (2006).

Usage

goldparticle

Format

A time series (ts) object containing 370 observations at equidistant time points.

Source

Jung, R.C.; Tremayne, A.R. (2006) Coherent forecasting in integer time series models. International Journal of Forecasting, 22, 223–238.

Westgren, A. (1916) Die Veraenderungsgeschwindigkeit der lokalen Teilchenkonzentration in kolloidalen Systemen (Erste Mitteilung). Arkiv foer Matematik, Astronomi och Fysik, 11, 1–24.

Examples

plot(goldparticle)